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ugfx/drivers/gdisp/Win32/gdisp_lld.c

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/*
ChibiOS/RT - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/GFX is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file Win32/gdisp_lld.c
* @brief GDISP Graphics Driver subsystem low level driver source for Win32.
*
* @addtogroup GDISP
* @{
*/
#include "ch.h"
#include "hal.h"
#include "gdisp.h"
#if GFX_USE_GDISP || defined(__DOXYGEN__)
/* Include the emulation code for things we don't support */
#include "gdisp_emulation.c"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <windows.h>
#include <wingdi.h>
#include <assert.h>
/*===========================================================================*/
/* Driver local routines . */
/*===========================================================================*/
#define APP_NAME "GDISP"
#define COLOR2BGR(c) ((((c) & 0xFF)<<16)|((c) & 0xFF00)|(((c)>>16) & 0xFF))
#define BGR2COLOR(c) COLOR2BGR(c)
static HWND winRootWindow = NULL;
static HDC dcBuffer = NULL;
static HBITMAP dcBitmap = NULL;
static HBITMAP dcOldBitmap;
static volatile bool_t isReady = FALSE;
static LRESULT myWindowProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
HDC dc;
PAINTSTRUCT ps;
switch (Msg) {
case WM_CREATE:
break;
case WM_MOUSEMOVE:
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_LBUTTONDBLCLK:
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_MBUTTONDBLCLK:
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
case WM_RBUTTONDBLCLK:
break;
case WM_SYSKEYDOWN:
case WM_KEYDOWN:
case WM_SYSKEYUP:
case WM_KEYUP:
break;
case WM_CHAR:
case WM_DEADCHAR:
case WM_SYSCHAR:
case WM_SYSDEADCHAR:
break;
case WM_PAINT:
dc = BeginPaint(hWnd, &ps);
BitBlt(dc, ps.rcPaint.left, ps.rcPaint.top,
ps.rcPaint.right - ps.rcPaint.left,
ps.rcPaint.bottom - ps.rcPaint.top,
dcBuffer, ps.rcPaint.left, ps.rcPaint.top, SRCCOPY);
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
SelectObject(dcBuffer, dcOldBitmap);
DeleteDC(dcBuffer);
DeleteObject(dcBitmap);
winRootWindow = NULL;
break;
default:
return DefWindowProc(hWnd, Msg, wParam, lParam);
}
return 0;
}
static DWORD WINAPI WindowThread(LPVOID lpParameter) {
(void)lpParameter;
MSG msg;
HANDLE hInstance;
WNDCLASS wc;
RECT rect;
hInstance = GetModuleHandle(NULL);
wc.style = CS_HREDRAW | CS_VREDRAW; // | CS_OWNDC;
wc.lpfnWndProc = (WNDPROC)myWindowProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = GetStockObject(WHITE_BRUSH);
wc.lpszMenuName = NULL;
wc.lpszClassName = APP_NAME;
RegisterClass(&wc);
winRootWindow = CreateWindow(APP_NAME, "", WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU, 0, 0,
GDISP.Width, GDISP.Height, 0, 0, hInstance, NULL);
assert(winRootWindow != NULL);
HDC dc = GetDC(winRootWindow);
GetClientRect(winRootWindow, &rect);
dcBitmap = CreateCompatibleBitmap(dc, GDISP.Width, GDISP.Height);
dcBuffer = CreateCompatibleDC(dc);
dcOldBitmap = SelectObject(dcBuffer, dcBitmap);
ReleaseDC(winRootWindow, dc);
ShowWindow(winRootWindow, SW_SHOW);
UpdateWindow(winRootWindow);
isReady = TRUE;
while(GetMessage(&msg, NULL, 0, 0) > 0) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
ExitProcess(0);
return msg.wParam;
}
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/* ---- Required Routines ---- */
/*
The following 2 routines are required.
All other routines are optional.
*/
/**
* @brief Low level GDISP driver initialisation.
* @return TRUE if successful, FALSE on error.
*
* @notapi
*/
bool_t GDISP_LLD(init)(void) {
RECT rect;
/* Set the window dimensions */
GetWindowRect(GetDesktopWindow(), &rect);
GDISP.Width = rect.right - rect.left;
GDISP.Height = rect.bottom - rect.top;
if (GDISP.Width > GDISP_SCREEN_WIDTH)
GDISP.Width = GDISP_SCREEN_WIDTH;
if (GDISP.Height > GDISP_SCREEN_HEIGHT)
GDISP.Height = GDISP_SCREEN_HEIGHT;
/* Initialise the window */
CreateThread(0, 0, WindowThread, 0, 0, 0);
while (!isReady)
Sleep(1);
/* Initialise the GDISP structure to match */
GDISP.Orientation = GDISP_ROTATE_0;
GDISP.Powermode = powerOn;
GDISP.Backlight = 100;
GDISP.Contrast = 50;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
return TRUE;
}
/**
* @brief Draws a pixel on the display.
*
* @param[in] x X location of the pixel
* @param[in] y Y location of the pixel
* @param[in] color The color of the pixel
*
* @notapi
*/
void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
HDC dc;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0 || y < GDISP.clipy0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
#endif
// Draw the pixel in the buffer
color = COLOR2BGR(color);
SetPixel(dcBuffer, x, y, color);
// Draw the pixel again directly on the screen.
// This is cheaper than invalidating a single pixel in the window
dc = GetDC(winRootWindow);
SetPixel(dc, x, y, color);
ReleaseDC(winRootWindow, dc);
}
/* ---- Optional Routines ---- */
#if GDISP_HARDWARE_LINES || defined(__DOXYGEN__)
/**
* @brief Draw a line.
* @note Optional - The high level driver can emulate using software.
*
* @param[in] x0, y0 The start of the line
* @param[in] x1, y1 The end of the line
* @param[in] color The color of the line
*
* @notapi
*/
void GDISP_LLD(drawline)(coord_t x0, coord_t y0, coord_t x1, coord_t y1, color_t color) {
POINT p;
HPEN pen;
HDC dc;
HGDIOBJ old;
HRGN clip;
#if GDISP_NEED_CLIP
clip = NULL;
if (GDISP.clipx0 != 0 || GDISP.clipy0 != 0 || GDISP.clipx1 != GDISP.Width || GDISP.clipy1 != GDISP.Height)
clip = CreateRectRgn(GDISP.clipx0, GDISP.clipy0, GDISP.clipx1, GDISP.clipy1);
#endif
color = COLOR2BGR(color);
pen = CreatePen(PS_SOLID, 1, color);
if (pen) {
// Draw the line in the buffer
#if GDISP_NEED_CLIP
if (clip) SelectClipRgn(dcBuffer, clip);
#endif
old = SelectObject(dcBuffer, pen);
MoveToEx(dcBuffer, x0, y0, &p);
LineTo(dcBuffer, x1, y1);
SelectObject(dcBuffer, old);
SetPixel(dcBuffer, x1, y1, color);
#if GDISP_NEED_CLIP
if (clip) SelectClipRgn(dcBuffer, NULL);
#endif
// Redrawing the line on the screen is cheaper than invalidating the whole rectangular area
dc = GetDC(winRootWindow);
#if GDISP_NEED_CLIP
if (clip) SelectClipRgn(dc, clip);
#endif
old = SelectObject(dc, pen);
MoveToEx(dc, x0, y0, &p);
LineTo(dc, x1, y1);
SelectObject(dc, old);
SetPixel(dc, x1, y1, color);
#if GDISP_NEED_CLIP
if (clip) SelectClipRgn(dc, NULL);
#endif
ReleaseDC(winRootWindow, dc);
DeleteObject(pen);
}
}
#endif
#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__)
/**
* @brief Fill an area with a color.
* @note Optional - The high level driver can emulate using software.
*
* @param[in] x, y The start filled area
* @param[in] cx, cy The width and height to be filled
* @param[in] color The color of the fill
*
* @notapi
*/
void GDISP_LLD(fillarea)(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
HDC dc;
RECT rect;
HBRUSH hbr;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
#endif
color = COLOR2BGR(color);
hbr = CreateSolidBrush(color);
if (hbr) {
rect.bottom = y+cy;
rect.top = y;
rect.left = x;
rect.right = x+cx;
// Fill the area
FillRect(dcBuffer, &rect, hbr);
// Filling the area directly on the screen is likely to be cheaper than invalidating it
dc = GetDC(winRootWindow);
FillRect(dc, &rect, hbr);
ReleaseDC(winRootWindow, dc);
DeleteObject(hbr);
}
}
#endif
#if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__)
/**
* @brief Fill an area with a bitmap.
* @note Optional - The high level driver can emulate using software.
*
* @param[in] x, y The start filled area
* @param[in] cx, cy The width and height to be filled
* @param[in] srcx, srcy The bitmap position to start the fill from
* @param[in] srccx The width of a line in the bitmap.
* @param[in] buffer The pixels to use to fill the area.
*
* @notapi
*/
void GDISP_LLD(blitareaex)(coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t srcx, coord_t srcy, coord_t srccx, const pixel_t *buffer) {
BITMAPV4HEADER bmpInfo;
RECT rect;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; srcx += GDISP.clipx0 - x; x = GDISP.clipx0; }
if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; srcy += GDISP.clipy0 - y; y = GDISP.clipy0; }
if (srcx+cx > srccx) cx = srccx - srcx;
if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
#endif
memset(&bmpInfo, 0, sizeof(bmpInfo));
bmpInfo.bV4Size = sizeof(bmpInfo);
bmpInfo.bV4Width = srccx;
bmpInfo.bV4Height = -(srcy+cy); /* top-down image */
bmpInfo.bV4Planes = 1;
bmpInfo.bV4BitCount = 32;
bmpInfo.bV4SizeImage = ((srcy+cy)*srccx * 32)/8;
bmpInfo.bV4AlphaMask = 0;
bmpInfo.bV4RedMask = RGB2COLOR(255,0,0);
bmpInfo.bV4GreenMask = RGB2COLOR(0,255,0);
bmpInfo.bV4BlueMask = RGB2COLOR(0,0,255);
bmpInfo.bV4V4Compression = BI_BITFIELDS;
bmpInfo.bV4XPelsPerMeter = 3078;
bmpInfo.bV4YPelsPerMeter = 3078;
bmpInfo.bV4ClrUsed = 0;
bmpInfo.bV4ClrImportant = 0;
bmpInfo.bV4CSType = 0; //LCS_sRGB;
// Draw the bitmap
SetDIBitsToDevice(dcBuffer, x, y, cx, cy, srcx, srcy, 0, cy+srcy, buffer, (BITMAPINFO*)&bmpInfo, DIB_RGB_COLORS);
// Invalidate the region to get it on the screen.
rect.bottom = y+cy;
rect.top = y;
rect.left = x;
rect.right = x+cx;
InvalidateRect(winRootWindow, &rect, FALSE);
UpdateWindow(winRootWindow);
}
#endif
#if (GDISP_NEED_PIXELREAD && GDISP_HARDWARE_PIXELREAD) || defined(__DOXYGEN__)
/**
* @brief Get the color of a particular pixel.
* @note Optional.
* @note If x,y is off the screen, the result is undefined.
* @return The color of the specified pixel.
*
* @param[in] x, y The start of the text
*
* @notapi
*/
color_t GDISP_LLD(getpixelcolor)(coord_t x, coord_t y) {
color_t color;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < 0 || x >= GDISP.Width || y < 0 || y >= GDISP.Height) return 0;
#endif
color = GetPixel(dcBuffer, x, y);
return BGR2COLOR(color);
}
#endif
#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL) || defined(__DOXYGEN__)
/**
* @brief Scroll vertically a section of the screen.
* @note Optional.
* @note If x,y + cx,cy is off the screen, the result is undefined.
* @note If lines is >= cy, it is equivelent to a area fill with bgcolor.
*
* @param[in] x, y The start of the area to be scrolled
* @param[in] cx, cy The size of the area to be scrolled
* @param[in] lines The number of lines to scroll (Can be positive or negative)
* @param[in] bgcolor The color to fill the newly exposed area.
*
* @notapi
*/
void GDISP_LLD(verticalscroll)(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
if (!lines || cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
#endif
/* NOT IMPLEMENTED YET */
}
#endif
#endif /* GFX_USE_GDISP */
/** @} */
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